For some reason I feel the vagrant might be a future version of parker that came back to his past. Maybe came that way to reduce notice and thus paradoxes or just jumped back farther than intended without good resources thus the messier appearance. The verse might even apply to parker leaving his time stream to fix a mistake that cost him his friends.

theory does have one flaw I noticed already vagrants eyes are the wrong color but they make contacts for that if he was trying to conceal the fact that he was the same person.